Date: Mon, 10 Apr 2006 08:47:37 -0500 From: "Keith Bottner" <kbottner@barkinglizards.com> To: <freebsd-questions@freebsd.org> Subject: SIGCHLD and sockets HELP! Message-ID: <027201c65ca5$54c89ab0$0e01a8c0@Stile>
next in thread | raw e-mail | index | archive | help
I am having a problem with SIGCHLD signals and their interaction with sockets. I have an application that forks modules in separate processes and use UNIX domain sockets for communication. The main application handles the SIGCHLD signal so that it can detect when/if a module crashes and if so restart that specific module. The problem arises when the module crashes and before the main application is notified with the SIGCHLD signal the socket will continue to allow writes. I expected that there would be occasions when the SIGCHLD signal would occur after my attempt to write into the socket, but I also expected the socket to return an error at which point I could then mark the module for restart as well. My question is, has anybody else had this problem? Does anybody know exactly what is going on an why? And most importantly, does anybody have a solution? Thanks in advance for your time, it is quite an interesting problem so I am hoping to get some insightful answers. Keith
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?027201c65ca5$54c89ab0$0e01a8c0>